How to transfer parameters from JSP to Flex4?

I am developing a web application in which I need to transfer url parameter from JSP to Flex 4.

开发者_如何学运维

I think, I must use flashvars concept but I am not sure. Can anyone please help me out to resolve this?

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We do it this way: JSP talks to java class that in turn talks to Flex. Let me know if you need more info